Sight-feed lubricator



S. BOZO. SIGHT FEED LUBRICATOR. Armcmon man 1m29. |920.

Patented. Nov. 16, 1920.

INVENToR ATTORNEY;

UNITED STATES'A STEFAN BOZO, 0F NEW YORK, N. Y.v

SIGHT-FEED LUBRIcA'roR.

Application filed January 29, 1920. Seria1,N0.'354,820.

To all whom it may concern Be it known that I, STEFAN Bozo, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and` useful Improvements in Sight-Feed Lubricators, of which the following is a specification.

The present invention relates to sight-feed lubricators, and more particularly to that type wherein .the discharge opening of the oil cup is controlled by a spring-pressed needle valve, the latter' being shiftable to allow of adjustment of said discharge opening. Means are usually provided on these lubricators, in the form of a shiftable stop, that coperates with the valve for holding the latter in predetermined positions.

The main object of the present invention is to provide an adjustable stop for sightfeed lubricators, which is simple in construction, efcient in operation, and which may be conveniently manipulated and allows of a ne adjustment of the valve.

Another object of the invention is to construct a multiple feed lubricator, the adjusting means associated with each feed thereof being independent of the others thereon.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter described, pointed out in the appended claim and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and detalls of construction within the scope of the appended claim, without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of section taken on line 3 3 of Fig. 1, on a larger scale.

In the drawings, the numeral 1() indicate-s an oil cup, preferably cylindrical in configuration and comprising a metallic bottom 11, a metallic top 12 anda cylindrical wall 13, that is, preferably, made of transparent material, such as for instance glass. The elements mentioned may be held together 1n any suitable manner. To the bottom 11 Specification of Letters Patent;y Patented NOV. 16, 1920; p

are xed a plurality of sight-feed chambers 14, into which extend nozzles 15 on tubes 16, the latter extending from the bottom 11 upward through openings 17 in the top 12, the portions of the tubes above the top being provided with exterior screw threads 18, as clearly shown in Figs. 2 and 3 of the drawings. With the discharge nozzle `15 of each tube 16 coperates a needle valve, the stem 19 of which extends through and above the respective tube, it having pivoted thereto at its upper end a lever 20, which is adapted to coperate with thev adjusting mechanism of the respective discharge nozzle.

Each adjusting mechanism comprises a l nut' 21, the threads of which mesh with the exterior threads-1S on the respective tube 16. The respective valve stem 19 extends through the nut. On each valve stem is coiled a spring 22, disposed within the respective tube 16, the lower end of the spring abutting against a stop 23 on the valve stem and the upper end of the spring bearing against a sleeve 24, that is disposed within the tube 16 and fixed thereto. Upon each nut is formed a worm gear 25, meshing with a worm 26, the latter being rotatably mounted in vertical slots 27 of frame members 28, which are made, preferably, integral with a base plate 30, having an opening 31, through which the respective tube 16 extends. The base plates 30 rest upon the top 12 against which they are clamped by nuts 3,1', meshing with the threads 18 of the tubes 16. Each worm is provided with a milled knob 32, to facilitate the rotation of the same.

The oil cup is filled through an opening 33 in the top 12, oil passing through perforations 34 in the tubes 16 toward the noz* zles 15. The perforations 34 are preferably disposed a slight distance above the bottom 11 of the oil cup.

The operation of this device is as follows When the levers 20 are disengaged from the nuts 21, as shown in the several figures of the drawings, the springs 22 hold the needle valves in their lowermost positions, in which they close the nozzles 15. In

order to allow oil to pass through a nozzle,

the respectiveneedle valve is raised, against the pressure of its spring, by shifting the lever 20 around its pivotinto engagement with the adjusting nut 2l. feed, the Worms 26 are turned in one or the other direction, thereby raising or lower# ing the adjusting nuts 21, as the case may be, with the result that thenozzles 15 are more or less constricted. y

The Worin gears and worms Vallow of a nice adjustment of the feed, they forming preferably a self-locking construction, holding the nuts 2l fixed in position against vibrations, shocks, etc.,to Vwhich the device7 on whichV ther'oil cup is mounted, may be subjected.A Y

i The several needle valves may be adjusted independently of one another, according to the requirements.

In a multiple supply lubricator, the combination With a lubricant containing To adjust the` receptacle, of a series of tubularl bodies eX- tending therethrough each having exterior threads on aportion thereor1 that is disposed .uponjsaid nut7 a bearing member carried by said receptacle, and a Worm rotatably mounted in said bearing member and meshing vwith the teethy of said Worm gear, said Worin being shiftable on said bearing meniber in a ldirection parallel to the longitudi.- nal axis of said tubular body. Y

Signed at New York, in the county7 of New Yorlrand State of New York, this 26th day of January, 1 920.

j STEFAN Bozo` 

